Mr Knee said it was difficult to say how many drugs got to the islands.
Whether or not global warming is also a contributing factor is more difficult to say.
Mr Hampson said it was "very difficult to say" whether the stadium would be completed in time.
Because there has been so little study of UPIs, it's difficult to say whether those fears are valid.
WSJ: Should Every Patient Have a Unique ID Number for All Medical Records?
First, it is difficult to say when we are in a bubble and when expectations have become unrealistic.
"It's very difficult to say how much money is entering the revenues of the government, " the official says.
And I think for some of them, it's going to be very difficult to say, I didn't support him.
It's also difficult to say whether certain types of films will be made because of the recession, she said.
He said it was difficult to say when the matter would be resolved.
It's difficult to say how much the system has boosted the top line.
Some analysts said the lack of details made it difficult to say whether Sony had a winner in PS4.
Difficult to say who should have gone for it, but someone should have.
"It would be difficult to say no, " said Rush when asked if he wanted to become Wales' next manager.
"It's difficult to say after one race, really, that we're unbeatable, " he said.
"It is difficult to say how long it could take, " says Dr Hay.
It is difficult to say in the same breath that your opponents intend to spend too little and too much.
Dr. HAJIM AL-HASANI (Speaker, Iraqi Parliament): It's very difficult to say whether this constitution is going to be passed or not.
It's difficult to say if the whole sector is a good buy or not, because it's different from country to country.
It will be difficult to say at this point, but the above mentioned initiatives certainly provide Symantec the opportunity to do so.
FORBES: Symantec Comes Out Swinging For Market Share, Stock Good For $21
With the genie of nationalism now out of the bottle, it is difficult to say what may happen after the Russian election.
One key change appears to be that people are making fewer journeys, although how much is due to fuel consumption is difficult to say.
Never ask for more than you need or put your family and friends in a position where it would be difficult to say no.
Clearly the Web draws hours of use, although with multitasking it can be difficult to say what it is taking eyes and ears away from.
Viola Ross-Smith, Research Ecologist with the British Trust for Ornithology, said it was difficult to say what would happen following the publication of the research.
It would be difficult to say exactly what caused the population displacement or who might be responsible for the damage from the images, according to the report.
At this stage we are just going in hoping for the best but it is difficult to say if we can do better than we did in 1999.
"Swansea is my home town club but it's difficult to say I definitely want to stay when I don't know what the club is thinking, " said MacDonald, 21.
"Until we really lay out what the milestones are, it will be very difficult to say what the right budget" is for the long term, Dr. Collins said.
应用推荐